After looking at a number of options and trying to come up with solutions, I decided to dive in and do my own marine decking. Those of us with older boats that have non gel coated floors are at a disadvantage, until now!
I started with the painful process of pulling up the old carpet. There is a bunch of write ups out there on this so I will spare you the details but will say getting he first part up is the hardest and acetone works well to strip the old glue. Specific questions, just ask.
After stripping the glue, I made a series of templates based on the sheet sizes of the Ultralon to limit seams or hide them in areas already covered. There are seams where the fiberglass overlaps so I decided to use a fairing putty to smooth them out.
After the fairing was done and the dust cleared, I laid down to coats of epoxy to eliminate fabric print and to give a clean surface to bond to.
Finally it was time to lay the floor! I scuffed the epoxy with 120 grit to knock out any dirt and imperfections that might cause delamination. I double checked the fit and and laid the first piece.
I continued on, double checking and fitting pieces...
So there it is, a quick update on my flooring project. There are a number of foam flooring suppliers like SeaDek and Gator Step but I chose Ultralon for the durability, higher HDT and the color retention. Anyway, I will explain all of this when I finish the project and complete the post. I am happy to answer any questions before that time as well.
I used an epoxy from Axson and added a pigment to it. The product was fairly viscous and self leveled well. The first coat was brushed on with a 4" brush (faster than you might think) and the second was done with a roller.
The foam can hide a lot but not like carpet does. Smoothing the transitions keeps the ridges from showing and more importantly, make sure you have full contact for the adhesive.
The carpet would not be accurate enough for the flooring so I used a heavy flooring paper and masking tape. Since it was a one off I was not too concerned about it. I was able to keep them intact after cutting my pieces surprisingly.
The epoxy and fairing material were both Axson products. The fairing putty could be a basic polyester type material (bondo) as well if you wanted to save money.
Almost there! Finished cutting the center floor locker last night. Only thing remaining is the pullout.
From a pricing standpoint I am not sure how it compares. I do know that it is much more durable and has a high HDT so it shouldn't be moving around and pulling back like I have heard with SeaDek and the like. If you are interested send me a message and I can help.
I am getting closer to finishing this project and came across some things that might help others along the way as it pertains to how you can deal with the center pull out.
I am rebuilding my center floor because the aluminum honeycomb that was there has been dented, dinged and has delaminated over time. That said, I know many center floors are just fine which will have most wanting to reuse them. What you will find once you remove the carpet is that the center floor is much smaller than the opening and this is to compensate for the carpet which wrapped around both sides.
There are many ways to finish out the edge of the Ultralon but one thing you cannot do is simply allow the material to overhang and fill this gap. If you did there would be nothing underneath it and likely the product would move around, creating an uneven edge.
So, even though I am replacing my center floor and it will go all the way to each edge I decided to play around to see if I could come up with some solutions for those that want to do this and also want to retain their existing center floor.
First I came up with the idea of cutting a V groove on the backside to allow the material to wrap over the 90° outside corner with a much tighter radius. The picture below is something I did with a razor blade just for sake of trial.
This creates a much cleaner and tighter angle compared to wrapping the 6mm material over. This also releases the tension on both surfaces. If this were cut with a clean router edge it would match up to itself quite nicely.
It also turns out, in my case, that wrapping both sides filled the gap just about perfectly. The corners of the main deck panels are not 90° and are cut with a slight radius, again, to compensate for the carpet. I opted to cut my new center floor and the main deck at a 90° angle because the two radiuses were not the same. It is amazing what you can hide with carpet. I bring this up because I am not exactly sure how you would accommodate that radius with this method. I suspect it would take some creative cutting and fitting to make it work well. One benefit of overlapping both edges is it will create a nice tight fit and therefore you would not just be relying on the adhesive to maintain fit and finish. This should be helpful considering the amount of cutting a material manipulation that would likely be required for the radiuses.
What I will be doing on my floor is putting just a slight bevel on the main deck and the center floor with a 45° router bit. The results are pictured below.
Since my center panel will go all the way to the edge it will be completely supported therefore I do not need to roll the material over the edge. This will also allow it to fit nicely into the forward corners which I have cut to 90° angles.
Another thing that I found when I was aligning seams together while laying the floor is that this material does and amazing job hiding seams. This got me to thinking about leaving a slight overhang, perhaps 1/32 of an inch, and creating a very tight fit for the center floor. The idea would be to have a seam that is nearly invisible like the picture below.
I decided against this because maintaining that perfect edge in an area that will see high traffic could be difficult. I think it would end up looking like you were trying to hide the seam which, of course, would be the idea but if someone can tell that you are trying to hide the same what is the point?
Anyway, I hope this gives you some ideas and sparks some conversations when you get ready to do your own.
I was able to get the center floor rebuild finished and I put down the Ultralon.
it is not done as I still need to fit and align the outer seams and get it screwed down but this was the last obstacle to completing the project.
I changed course on the swim step. I was going to do it with the standard brushed grey to match the bow steps and gunwale pads I made but decided to match it up to interior floor.
Just a quick update. I am planning to finish this up in the next few days so stay tuned!
I made templates using the original step pad and used a 45 degree router bit to cut the edges. Some choose to use a quarter round or similar bit. I have a variable speed router and used a lower speed and made a moderate speed pass.
Feel free to ask any other questions you might have.
The final issue I faced was the walk through locker door. Having been wrapped with carpet, the panel was undercut and off center.
My solution was to use a 1/2" piece of starboard. The factory aluminum honeycomb was 3/8" but with the 6mm Ultralon on the 1/2" starboard, everything lined up perfect!
The factory hinge (pictured below) was too short with the 1/8" higher starboard and the decking was getting pinched when the door would open.
I bought a 1 1/2" stainless hinge (pictures below and 3/4" when closed) which resolved the issue and lined up flush with the door.
Final step was to cut a 1 3/4" hole for the door pull and the final result of this project is below. All I need now is a thorough cleaning and to wrap up a few small details...
I have one seam in the main area and it is center between the fuel tank cutout and the forward locker. The center floor was cut from a single piece. That's all I needed!
I suggest investing in a nice metal straight edge and cutting directly along one of the black lines (if you use the laminated plank) and cut at an ever so slight angle toward the straight edge. Then when you place the panels together you can use about a 1/16 or 1/32 overlap and the seam virtually disappears without causing a ridge.
So there it is! I hope this helps and if you have any questions or need more details, don't hesitate to ask.

For those that have older boats, you may have battled the eye sore called the stationary pylon. I looked into aftermarket options and didn't see anything that would quite do the job. I also read posts where some had done some extensive modifications to create their own with success but I approached it a bit differently.
Instead of modifying the area that holds the pylon by extending it and adding a groove for a bolt to ride in, I had a groove put in the pylon to allow it to ride on a pin. Basically I reversed what is done from the factory.
The machinist took off about .030 to allow the unit to move in and out . There is a slight taper that helps lock the pylon in place so this had to be removed. All I need to do (in theory) is drill and tap the mounting bracket and add a pin to sit in the groove. The bracket will hold the same load as before and considering the pylon is a ridiculously overbuilt chunk of billet, it should not have any problems pulling anything. I will post more once I get it installed and tested.
To finish this I drilled and tapped a 3/8" stainless bolt directly into the frame that originally held the pylon.

Excellent question. The vinyl tube I used was a 1/4" i.d. and 3/8" o.d. so it has some decent wall thickness for the size of tube. I also use this tube for other projects so I knew it would work for my scenario.
To your point, I would look at a reinforced tubing or a HDPE tube if you want to go with a much larger i.d. tubing or, at least, pay attention to the wall thickness. HDPE will be stiffer and not drape as well so another option that is semi flexible and will be moderately drapeable is LDPE.
Most of the tubing available at your local hardware store up to about 1/2" i.d. will not give you problems. Look at the tubing and if it is thin wall or easy to collapse with your fingers, it will collapse under vacuum. Full vacuum is one atmosphere or roughly 14.7psi.
I put a few illustrations below...
Thin wall tubing- you can see how it is distorted sitting under its own weight. I bet you could collapse something like this with no effort...
Thick wall tubing...
Way more than you asked for but I hope it helps!

In my quest to reinvent the wheel and after reading so many negative comments on a variety of fluid extraction units, I designed my own.
Using PVC pipe, caps and some brass fittings this is what I came up with...
I used and inexpensive 2.5 CFM vacuum pump from Harbor Freight which you can find for around $85.00. I already had the pump which I use for other things but it was this that started the gears turning.
I used 1/4" tubing and 1/4" barbed MIP (All 1/4 NPT threads) for the vacuum and extraction lines. I drilled and tapped with a 7/16" drill bit and a 1/4 NPT tap.
I added a 1/4" FIP barbed fitting to connect to the factory drain hose on my Malibu as seen below...
On the top I have a 3/4" ball valve for draining the tank with a brass hose cap for cleanliness more that anything. This sits on a 2" to 3/4" threaded PVC reducer and is connected to a 4" to 2" adapter.
The pipe is 4" PVC with a flat bottom cap.
The results were outstanding! I drained the engine in about 12 minutes with no mess and not a drop of oil anywhere...even when I drained the tank. Keep in mind the engine was cold and I was pulling though a 1/4" hose, up about 4 feet of elevation. I know the unit can move much more volume because I can shut off the vacuum pump and the residual vacuum in the tank will keep pulling oil for an extended period of time. This still far outperforms most store bought systems in the current configuration. Next I will be changing to a 3/8" i.d. barbed fitting, on the fluid side only, to match the factory hose and I will be adding a hydraulic quick connect so I can switch back to the 1/4" tube for the lawnmower, trimmer etc.
I suspect that if I had the hose running through the bottom of the hull with a 3/8" hose l, I could drain it in half the time or better. For comparison I also drained the transmission in about 60-90 seconds.
The best part is this unit is serviceable with parts available at any hardware store! No special fittings or connections and it can be adapted for many other engine or machinery as long as what you are extracting is compatible with the tank and hoses.

I appreciate your willingness to be a bit more bold than I was. My older VLX does not have as much of an interesting graphic combination from the factory so I went very conservative by replacing what was there with updated patterns and colors. You made great choices and the end result for your vinyl is excellent! Great work!!

So here is the final version. I added a 1 1/4" comb T fitting with a 3/4" threaded outlet for the ball valved garden hose fitting. Screw on the hose and open the valve, close the raw water intake, turn on the hose and fire it up! Less than 60 seconds.
The total cost was about $12.00

nickm inspired me to post my version of the fake-a-lake after reading his post for the Raptor motor. Not being a closed system, a constant flow is required so what I did was take a 1 1/4" reinforced tube and coupled this to a 1 1/4" elbow and then to 1" adapter. From there I added a 3/4" adapter with a hose hook up. Works great and I can run my Monsoon and maintain proper temp all day long! Version 2 will be permanently plummed with a diverter valve. Coming as soon as I find the right tubing because the factory set up is just a few inches too short to cut and insert the T fitting. Not sure if this is right but it works for me.